Variable Star DQ Her


DQ Her = AN 1934.0452 

GCVS result

ID: 400139
Variable star: DQ Her
RA 2000: 180730.2
DE 2000: +455132
RA 1950:
DE 1950:
Type of variability: NB+EA
Max (mag): 1.3
Min (mag): 18.08
Photometric system: V
Epoch (JD): 27794.
Period (d):
Year of outburst for N, SN: 1934
M-m (or D):
Spectrum: pec(NOVA)
Study reference:
Chart or phot. ref.: 00002
Cases of non-existence:

GCVS NOTE result

"VB A (B 18.17m, F, 3.5"", 132deg, optical?)." "Nebula, R = 10.5"" (Halpha, 1981)." After the main Max of the Nova a deep Min 13.0m (JD2426925) and a flat secondary Max 6.7m (JD2427065) were observed. Eclipsing variability: 14.61m - 18.08m, Min HeI = 2434954.9445 + 0.193620877d*E [09280]. D = 0.20P, d = 0.000P. The light curve shape and Delta(M) var. Oscillations: Max HeI = JED2434954.785868 + 8.22521640d*10**(-4)*E - 2.8048d*10**(-16)*E**2 [08722], 0 <= Delta(m) <= 0.08m. Polarization changes with double oscilation period. Flickering: Delta(m) = 0.15m.

GCVS NOTES fulltext search:  

NSV: Suspected Variable NSV  not found.

BRKA: Variable star DQ Her not found.

MEKA: Variable star DQ Her not found.

DSS plate 15'x 15'

Image from the Digitized Sky Survey at the STScI Archive.


Please put the variable's designation into field in common style - for example: ZUMa, zuma, V477Cyg, v1182Cyg, NSV 255, nsv2544. Designation of bright variable stars like Beta Persei type in short style (three letters) - bet Per. The complete cross-identification among more then 30 catalogues will be done after submitting.
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